Two new luxury apartment buildings in Jersey City, New Jersey, have begun accepting applications from prospective tenants.Leasing is underway for Ironstate Development Co.’s 295J, a 309-unit rental building, and Namdar Group’s MRK property, a 16-story tower with 132 apartments and more than 100 shared office spaces. 295J is in the Bergen-Lafayette neighborhood, west of Downtown Jersey City. MRK is in the city’s Journal Square neighborhood. Queens-based Modern Spaces is the exclusive leasing agent for MRK, where rents start at $1,800 per month. Monthly rents at 295J start at $1,910 with occupancy starting in April.